8 ohms speaker
The 8 Ohm Speaker is a small general-purpose speaker for audio output in Arduino and electronics projects. It can produce tones, music, and sound effects when driven by a microcontroller or audio amplifier.
Key Features
- 8Ω impedance
- Compact size
- Low power
- Simple 2-wire connection
- Through-hole mounting
Technical Specifications
| Parameter |
Specification |
| Impedance |
8Ω |
| Power |
0.25W – 1W |
| Diameter |
~28-40mm |
| Frequency Range |
~200Hz – 20kHz |
Applications
- Arduino tone() projects
- Audio feedback
- Simple music playback
- Alarm sounds
- Voice playback (with module)
Important Notes
- Arduino digital pin can drive directly at low volume
- Use transistor or amplifier for louder output
- Add 100Ω series resistor when driving from MCU pin
- Small speakers have limited bass response
